EP2173623A1 - Récipient en plastique avec rainure d'engagement - Google Patents

Récipient en plastique avec rainure d'engagement

Info

Publication number
EP2173623A1
EP2173623A1 EP08786163A EP08786163A EP2173623A1 EP 2173623 A1 EP2173623 A1 EP 2173623A1 EP 08786163 A EP08786163 A EP 08786163A EP 08786163 A EP08786163 A EP 08786163A EP 2173623 A1 EP2173623 A1 EP 2173623A1
Authority
EP
European Patent Office
Prior art keywords
container
thread
groove
ring
circumferential
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP08786163A
Other languages
German (de)
English (en)
Other versions
EP2173623B2 (fr
EP2173623B1 (fr
Inventor
Jochen FORSTHÖVEL
Christian Stoiber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Krones AG
Original Assignee
Krones AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
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Application filed by Krones AG filed Critical Krones AG
Publication of EP2173623A1 publication Critical patent/EP2173623A1/fr
Application granted granted Critical
Publication of EP2173623B1 publication Critical patent/EP2173623B1/fr
Publication of EP2173623B2 publication Critical patent/EP2173623B2/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
    • B65D1/023—Neck construction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B11/00—Making preforms
    • B29B11/14—Making preforms characterised by structure or composition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/071—Preforms or parisons characterised by their configuration, e.g. geometry, dimensions or physical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B11/00—Making preforms
    • B29B11/06—Making preforms by moulding the material
    • B29B11/08—Injection moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/072—Preforms or parisons characterised by their configuration having variable wall thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/073—Preforms or parisons characterised by their configuration having variable diameter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/074—Preforms or parisons characterised by their configuration having ribs or protrusions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
    • B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
    • B29C2949/077—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the neck
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
    • B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
    • B29C2949/077—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the neck
    • B29C2949/0772—Closure retaining means
    • B29C2949/0773—Threads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/081—Specified dimensions, e.g. values or ranges
    • B29C2949/0811—Wall thickness
    • B29C2949/0813—Wall thickness of the neck
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/081—Specified dimensions, e.g. values or ranges
    • B29C2949/0811—Wall thickness
    • B29C2949/0817—Wall thickness of the body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/22—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at neck portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/24—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at flange portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/26—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at body portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/28—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at bottom portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3024—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3032—Preforms or parisons made of several components having components being injected
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/06—Injection blow-moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/4205—Handling means, e.g. transfer, loading or discharging means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/4205—Handling means, e.g. transfer, loading or discharging means
    • B29C49/42073—Grippers
    • B29C49/42075—Grippers with pivoting clamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/25—Solid
    • B29K2105/253—Preform
    • B29K2105/258—Tubular

Definitions

  • the present invention relates to a plastic container and in particular a plastic container for storing beverages. More recently, plastic bottles, such as PET bottles, have become more prevalent on the market than glass bottles. In the production of these bottles, so-called preforms are heated and expanded within a mold, for example with air pressure.
  • This collar is used to grip the container, for example, with a gripping arm and to be able to pass on to another gripping arm.
  • this collar which is also referred to below as a support ring, is used to handle the bottle.
  • a clamp that grips the container changes to the next one, wherein a clamp engages below this support ring and a clamp above this support ring between the support ring and a retaining ring usually arranged above the support ring.
  • This retaining ring is compared to the support ring much smaller and also designed to save material.
  • this support ring which is usually still visible in the finished product, only the manufacturing process of the containers / the product is used.
  • this support ring also requires a considerable Amount of plastic material. It should be noted that a preform in the area in which this support ring is arranged, remains undrawn and thus a large amount of material remains in the support ring.
  • the present invention is therefore an object of the invention to provide a container that allows a higher material savings and in particular to provide a container that dispenses with the mentioned support ring.
  • a container according to the invention has a main body and a thread. Furthermore, an at least partially circumferential locking ring is provided, which extends with respect to the main body of the container to the outside, wherein the at least partially circumferential locking ring is arranged in a longitudinal direction of the container between the thread and the base body and spaced in the longitudinal direction of the container from the thread.
  • the container between the base body and the circumferential locking ring on at least partially circumferential groove, said groove has a smaller outer cross-section than the locking ring and a small External cross-section as a thread.
  • the securing ring preferably extends substantially radially outward. However, it is also possible that the ring is arranged obliquely with respect to the radial direction.
  • the container is, for example, a preform or preform which can be expanded to a plastic container.
  • the securing ring is preferably also used at the same time to open a seal of the bottle closure when the bottle is opened.
  • the groove is formed both with respect to the thread and with respect to the retaining ring as a groove, that is, the groove has an outer circumference which is less than all areas of the thread so both the thread and a threaded core on which this Thread is attached.
  • this groove By providing this groove, it is possible to intervene with a specially adapted engaging means in this groove to transport the container or to treat generally and that the thread itself is not damaged by this intervention. More precisely, it is preferably possible for an engagement means to rest against the thread core from below, so that the thread itself is not touched.
  • the erfmdungsge speciallye object is also achieved in that erfmdungsge felicit below the thread next to the locking ring no further radially outwardly facing collar is provided.
  • erfmdungsgeand below the thread next to the locking ring no further radially outwardly facing collar is provided.
  • the container according to the invention is designed such that it can be gripped by different gripping devices at different heights in the longitudinal direction of the container, without causing the thread itself is touched or damaged. This will also, as in the prior art, engage a gripping device below the locking ring. Damage to the thread is avoided. It is also achieved by the groove that the container is gripped at a precisely defined height. If, on the other hand, an intervention in the thread were to take place, the exact height section of the region in which intervention takes place would be undefined, since it would also depend on the angular position of the preform or the bottle, because in this case also the threads or their end sections play a role would. Thus, the position of the container or the preform would be undefined, since this would be dependent on the rotational position of the container about the longitudinal axis.
  • an additional ring could be provided, which disappears in the closed state of the container under a bottle cap.
  • a corresponding gripping clip could engage between this additional ring and the locking ring and the groove would be formed between these two rings. In this way, however, the area which is responsible for the functioning of the closure system could possibly be impaired.
  • the invention is based on the fundamental idea that no additional geometries in the closure-sensitive Are built-in area, that is rings that protrude outward, but that with respect to the container radially inwardly facing groove is provided.
  • the at least partially and preferably completely circumferential groove in the longitudinal direction of the container directly adjoins the circumferential securing ring.
  • a side surface of this locking ring is at the same time a boundary wall of the groove. In this way, the dimensions of the entire container can be shortened.
  • the groove has at least sections of rectilinear boundary walls.
  • the height of the groove in the longitudinal direction of the container and the length of the circumferential securing ring in the longitudinal direction of the container by not more than 100%, preferably not more than 50%, preferably not more than 25% and especially preferably not more than 10% from each other.
  • the groove and the retaining ring are dimensioned substantially equal in size with respect to their respective extent in the longitudinal direction of the container.
  • the gripper tools can be designed with correspondingly uniform sizes or form elements.
  • the circumferential circlip has a rectilinearly outwardly extending portion and an adjoining this portion obliquely in the longitudinal direction of the container downwardly extending portion. In this way, a further material saving is possible. By this slope creates a centering effect when engaging the gripping tools in the groove.
  • the length of the first section and the depth of the groove do not differ by more than 50%, preferably not more than 25%, preferably not more than 10% and particularly preferably not more than 5% from one another. Preferably, these two greats agree with each other. Also by this procedure, standardized tools for transporting the container can be used with particular advantage.
  • the container is made of a plastic and more preferably of PET.
  • the basic body preferably has a cross-section widening at least in sections in the longitudinal direction of the container in the direction of the circumferential securing ring.
  • the inner wall of the container above the circumferential locking ring in a direction of the thread particularly preferably conically widening section. Since the groove described is directed inwards, the inner diameter of the preform is preferably reduced at this point, so that sufficient wall thickness for a Injection molding process is available and also the stability of the mouthpiece is maintained.
  • the inner diameter of the container decreases, as mentioned above, at the height of the locking ring, which is advantageous due to the Verschiffproblematik or under attacking the securing band with the Verschwinerklallen the closure.
  • the advantageously resulting heel within the mouthpiece can be advantageously used, for example, for sealing the tuyere during the blowing process.
  • a seal on the mouth edge possible.
  • a double seal on the mouth edge and on the specified paragraph is also conceivable.
  • the container is an expandable container and in particular a preform.
  • the present invention is further directed to a method for transporting a container of the type described above, wherein the container is gripped by a first gripping device below the securing ring and by a second gripping device at least partially on or in the circumferential groove.
  • a first gripping device below the securing ring
  • a second gripping device at least partially on or in the circumferential groove.
  • This device has at least one first gripping device, which grips the containers at a first predetermined region of the containers, and at least one second gripping device, which grips the containers at a second region of the containers that is different from the first region.
  • the first Greifeinri ⁇ htung is designed such that it engages the container below the securing ring and the second gripping device is designed such that it engages the container above the securing ring and at least in the groove of the container.
  • the present invention is further directed to an arrangement of containers with a device of the type described above.
  • Fig. Ia a container according to the prior art
  • Fig. Ib is a cross-sectional view of the container of Fig. Ia;
  • Fig. 2a is a perspective view of a container according to the invention.
  • Fig. 2b is a plan view of the relationship of Fig. 2a;
  • Fig. 2c is a cross-sectional view of the container of Fig. 2a;
  • Fig. 2d is an enlarged view of a head portion of the container of Fig. 2c.
  • Fig. Ia shows a perspective view of a container 20 according to the prior art.
  • This container 20 has a base body 22 and a thread 24. Between this thread 24 and the base body 22, a support ring 21 and a securing ring 26 are provided.
  • This container 20 is expanded to a plastic bottle in the course of the manufacturing process, but the shape including the support ring 21 and above the support ring 21 is maintained in the expansion process. It can be seen that the support ring 21 protrudes substantially radially outward and thus a large amount of material is required for this support ring.
  • FIG. 1b shows a cross-sectional view of the container 20 shown in FIG. 1a. Since this container is conveyed in a two-stage process with a plurality of gripping clamps, it is possible for a certain gripping clamp to engage beneath the supporting ring 21 and a further gripping clamp between the lower supporting ring 21 and the locking ring 26. In this way, an engagement in the thread 24 can be avoided and this can be spared.
  • This container 1 likewise has an expandable main body 2 and a thread 4 (not shown in detail), however, according to the invention, a thread 4 is provided next to the securing ring 6 Groove 10 provided which serves as an aid to a gripping device.
  • this groove 10 is performed circumferentially in Fig. 2a, but it is also possible to provide a partially broken groove. Through this groove 10 can be achieved that in the manufacturing process of the shutter-sensitive region of the thread is not touched and in particular is not touched radially from the outside, and thus deformations of this area can be avoided.
  • basically any common container and in particular any common mouthpiece can be modified by the principle according to the invention. This means that the screw caps which are freely available on the market can also be attached to the container according to the invention.
  • Fig. 2b shows a plan view of the container shown in Fig. 2a. It can be clearly seen here the groove 10 which is arranged between the locking ring 6 and the thread 4. However, the thread 4 is shown here only schematically. In a sealed bottle and the locking ring 6 is covered by the corresponding closure.
  • the reference numeral 12 refers to an inner wall of the container.
  • the base body 2 is, as mentioned above, expanded in the context of the manufacturing process.
  • FIG. 2 d shows a detailed view of the area A shown in FIG. 2 c.
  • the groove 10 is formed opposite the securing ring 6 and the thread 4 is.
  • This circlip 6 has an upper radially outwardly extending portion 6a, a lower radially outwardly extending portion 6c and an inclined portion 6b.
  • the radially outward-extending portion 6a also simultaneously constitutes a boundary wall 10a of the groove 10. This means that the depth T of this groove 10 is determined by the length of this rectilinear portion 6a.
  • Another boundary wall 10c is defined by a bottom 4c of the thread. To transport the containers, a gripping device can engage in this groove 10 and thus a direct contact with the thread 4b is prevented.
  • the reference numeral 4a shows a thread core.
  • the height H of the groove 10 thus extends in the embodiment shown in Fig. 2d from the end of the thread 4 to the locking ring 6. This is also the maximum height H of this groove 10.
  • the boundary wall 10b of the groove extends substantially in the L longitudinal direction of the container 1.
  • the reference numeral 14 refers to an oblique portion of the container inner wall 12. More specifically, in the region in which the groove 10 is provided, the container inner diameter is reduced to have a sufficient wall thickness available in all areas of the container 1. However, the inclined portion 14 could also be slightly offset upwards or downwards in the longitudinal direction L of the container 1.
  • the wall thickness of the container 1 below the securing ring 6 is preferably between 1.5 mm and 5 mm, preferably between 2 mm and 4 mm and particularly preferably about 3 mm.
  • the wall thickness is at least 1 mm, preferably at least l r 5 mm and particularly preferably at least 2 mm, even in the thinnest regions.
  • the groove 10 is thus formed in particular also with respect to the core 4 a of the thread 4.
  • the depth T of the circumferential groove orients itself to the minimum mouthpiece internal diameter that one is willing to accept.
  • the groove 10 should in particular be chosen so large or so deep that a reliable function of the clamp systems used is ensured. Due to the erfmdungsge awkwarde omission of the support ring can occur in individual cases, the problem that no support ring is no longer available, which protects the securing band of a bottle closure from under reaching. In this way, manipulation of this security band could be facilitated. In order to maintain this security, it would be possible to attach the closed mouthpiece or to arrange it with a sleeve on the container. Specifically, a shrink wrap could be placed over your closure or the head of the bottle.
  • Numeral Q G refers to the outer diameter or the outer cross section of the thread 4, reference numeral Q 3 on the ⁇ ußen preparer or the outer cross section of the locking ring 6, and reference numeral Q N to outer diameter or the outer cross section of the groove 10. It can be seen that the external cross section ⁇ Q of the groove 10 is less than the outer cross-sections Q G and Q 5 of the thread 4 and of the retaining ring. 6
  • a first gripping device engages below the securing ring 6 and can transfer the container, for example, to a further gripping device which engages in the groove 10.
  • a erfmdungsgelaute Apparatus for transporting such containers can be used for example in blow molding machines, labeling machines, filling machines, heaters for the containers and the like.
  • the base body also has a tapered region 16. This taper can be made lower in the container 1 according to the invention than in containers according to the prior art, since a rejuvenation already takes place in the upper portion 14.
  • the container in the section 16 tapers to between 1.5 and 3.0 mm, preferably between 2.0 and 2.7 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Manufacturing & Machinery (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

L'invention concerne un récipient (1) comprenant un corps de base (2) et un filetage (4), avec une bague de fixation (6) au moins en partie circonférentielle, qui s'étend essentiellement radialement vers l'extérieur par rapport au corps de base (2) du récipient (1). La bague de fixation (6) circonférentielle est disposée dans une direction longitudinale (L) du récipient (1) entre le filetage (4) et le corps de base (2) et est espacée du filetage (4) dans la direction longitudinale (L) du récipient (1). Conformément à l'invention, le récipient (1) présente, entre le filetage (4) et la bague de fixation (6) circonférentielle, une rainure (10) au moins en partie circonférentielle, cette rainure (10) présentant une section transversale extérieure plus petite que la bague de fixation (6) et une section transversale extérieure plus petite que le filetage (4).
EP08786163.9A 2007-07-17 2008-07-16 Récipient en plastique avec rainure d'engagement Active EP2173623B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007033621.9A DE102007033621B4 (de) 2007-07-17 2007-07-17 Kunststoffbehältnis mit Eingriffsnut
PCT/EP2008/059264 WO2009010520A1 (fr) 2007-07-17 2008-07-16 Récipient en plastique avec rainure d'engagement

Publications (3)

Publication Number Publication Date
EP2173623A1 true EP2173623A1 (fr) 2010-04-14
EP2173623B1 EP2173623B1 (fr) 2012-12-19
EP2173623B2 EP2173623B2 (fr) 2021-09-15

Family

ID=39798079

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08786163.9A Active EP2173623B2 (fr) 2007-07-17 2008-07-16 Récipient en plastique avec rainure d'engagement

Country Status (7)

Country Link
US (1) US9399534B2 (fr)
EP (1) EP2173623B2 (fr)
CN (1) CN101784454B (fr)
CA (1) CA2691726C (fr)
DE (1) DE102007033621B4 (fr)
ES (1) ES2401838T5 (fr)
WO (1) WO2009010520A1 (fr)

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Also Published As

Publication number Publication date
WO2009010520A1 (fr) 2009-01-22
CA2691726A1 (fr) 2009-01-22
US20100178148A1 (en) 2010-07-15
CA2691726C (fr) 2015-11-24
ES2401838T3 (es) 2013-04-24
DE102007033621A1 (de) 2009-01-22
CN101784454B (zh) 2012-05-23
CN101784454A (zh) 2010-07-21
EP2173623B2 (fr) 2021-09-15
ES2401838T5 (es) 2022-03-17
US9399534B2 (en) 2016-07-26
DE102007033621B4 (de) 2022-06-15
EP2173623B1 (fr) 2012-12-19

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